Headlight.



OVERTON WINSTON. F MINNEAPOLIS, MINNESOTA,"

TES

PATENT oFFiQE.

HEAntIGHT.

T o all whom itmay concern.-

-Be it'lmowi'i'that l, Ui'iiu'loN WiNS'rori, a citi/.en of` the UnitedStates. resid-ing at Minnealiolis, in the county, oli Hennepin VandState of Minnesota, have inventml certain new 'and useful `Improvenientsin Headlights; endl do hereby declare the following to be Ia tul|eleai',and exact `description off` the invention, such4 as will enable othersed inthe art-toirvliichv appertains to i y and use t-lie'aanie. Y l.,pmseiitaini'cation related.,.tehmltlllgll .for auton'iobiles andother veiig-les and is in v 86,852, tiled `ol: date,

sis

the nature of, or improvement on, or modilit-ation of theconstrllotion...disclosed .and claimed in my peiidin application-S-N.

lilarch 21,1916, and entitled, Headlights, but is idirected to meansadapting thelicafllight for multi? filaii'nent electric light bulbs.Generally 'sf'z'it`ed,.the invention consists of tlie`noveldevices andcombinations of devices liereu mlb. some parts being broken iaway; and

Fig. is` a view ,corresponding-'to Fig. 1, li'ur illustrating a somewhatVmodified conof the shank. The Iaid contacts r l y f The; filainent 2has ite intermediate or bot The light bulb 'l has tivo filaments' 2` and2, the outer ends of. which are'connected,

. ielspeetiively, 'to terminal wires' and 4 and fthe" inner ends ofwhich are connected to an intermediate electrode, which terminal ivirlsare located within tli'e bulb and Sup-f pla/led lrou'itlie shankl'l'le'reof. The shank ii fle bn'lb'lias three electric contacts 6, 7l"l$.',that are electrically connected,`re yto thepcleetrdes, 4 and 5,with surroundedl by ay 'flanged' internallf the reflector.

' given adjustments, bothlongitudinall and 'socket are not necessary or`desirable wh rk Spcction 0f Lett, t Patent. Patented Sept. 17,1918;Application led Aprillll; 1916, Serial No. 91.228. Renewed February 15,1918. ASerial No. 217

the reflector, it will be above the nig-Off de the-reflector. u

The reflector 9 has an axial opening and threadedwannular Vanchoringplate 10. T e metallic sleeye Bofftlieligl'itbulb is vided withplurality of'radially pro] ting. lugs. 11 adapted to be inserted`through .a correspondin `internal longitudinalfgrooife 12 of a lam)ioldingco1la'r 1,3,A and to engaged wit a serrated or Ierrugated tei'nalshoulder. `14 of said collar. 'llie colli 131s `prgwidel at itsiniierendwith'an c centric externally threaded lImrtionftha screwed intotheinternall-y threaded porti,` of a` socket tube 15, whieh,`in ti1 rn,ifs ,Sorely 'threaded `into the annular. micliiing` 10 and is therebyrgidlyflildf in respectltb The holdin. collar. 13 l and socket tube 15afford abul n l'iol`diii.,efr socket, l

by means of which the light bulb maybe"fffy transversel of the Aaxis ofthe rereetr. The oscil atory .movements olf" the "p amult-iflanient/light liulb is ,employed,"ai`id l consequent-ly'. therelatively ffixed meriiblir of' the lamp socket' is rigid ornoila'd.]il`eit` able, in respect to the yreflector'. L. The holdingcollarl'of thefsocke :.r a centering ring 16 seciiredtokind carried byits" inner end"portiohl Ihfefpa sage `through thecentering.ringdG-isfconeen to the axis of the shank` engajgingtheVfli'it end of the collar 13, andaehnseqiientl'y in all of the rotaryadjustments of 'siiidj el jwill be concentric to theL shank of the'el'tricli ht bulb. f

In?, ie outer end of the fixed tubularni i' 15 of the l'amp'socket isa-plug` or bloeltjI-T of ins'ulatingl material land projectingaxialllyrf" forward therefrom is' at forwardly spring-e105 i pressedcontact plunger, the head of Vwhich normally Spring-,pressed intoengagement with tl'ieiaxial contaet`8 `of the. light bulb.) The numeral19 indicates-'a coiled ,springt2U which is extended throughfthecentering?lill)` H ringI 16, re-actini.'` .against the insulating l'block 17 and has electrical Contact with the annular contact ll of. thelight bulb. The

` anchoring late 10, andif l I 'spring interposet .lower filament sleevecontact tiof the light bulb is grounded through vthe collar 13, sockettube 15 and @connected to a circuit lea, 20, ,"oontact plunger 18 andsprin 19 arc'co respective to circuitdea s 21 and 22, diagrammatica-l ysh'o'wn in F' t, 1. Obviously, whenthe circuit is cl throu h leads 20and `21, the. 2 wi be heatedwhile, when the circuit i'sclo'sed throughthe leads 21 and 22, the upper ,filament 2* will be heated. By referenceto 1, it will beI noted that through the passage thereof, the centeringsleeve 16 is tapered and that the inner. portion of the contact sprinl19 is' sli htly contracted, so that the sai spring wi 1 not s ring outof working position when the light ulb is'removed. orward movement ofthe contact plunger 18 will also be limited b the usual or any wellknown means. s shown, the heai--of the said contact plunger issagrounedby an insulating collar 23 thatJ prevents,l electrical contact. betweenthe samepand the surrounding contact spring 19, under all conditions.The numeral 24 indicates a short coiled between the plugr 17 and thecentering colar 16,`and which simply serves to take up play between thethreads of the eccentric 13l and socket tube 15, and

by producing increased friction, prevents accidentalrotary movements ofthe collar.

The centering ring 1G isof insulating material so that electricalconnection will not be made between the said collar 13 and the contactspring 19.

Theconstruction illustrated in Fig. il is like that illustrated in Figs.1 and L'. with the lfollowingr exceptions:

I nstead of the spring centering ring arto keep the fronty end of thecontact sprl 19 centered in respect to the shank of the light bulb, thebulbl holding collar 13 .is provided with an insulating centering thepassage in which is concentric to the axis of the socket tube 15, and,consequently, eccentric to the axis of the shank of the-light'bulb.4Instead of the two springs 19 and 24 used-in Fig. 1, the constructionillustrated in Fig. 3 employs a oiled spring having'relatively large andsmall sections 25 and 26, both of which constitute part of one of theelectrical contacts. The rear end of the lar section 25 re-acts againstthe insulating lock 17 and against a shoulder on y -porti'on 26 of saidthe centering ring 1G, whereas, the small spring is extendedthroughring;` and engages the an thepassage' of said the light bulb.' ,The saidnula'r contact 7 of s ring'25--2G, therefore, serves the combinedunction of 'a spring contact and ofaspring taking up play between thethreaded engage` ment. of the collar 13 and Socket -tuhe l5.

collar 13, Vin the. construction4 illustrated in Fig. 1. is rotated, thefrolitfend of the spring 19 will be kept concentric to the shank ot' thelight bulb, and when the socket of the construction illustrated in Fig.3 is rotated, the front. end of the spring scction 26 will be heldalways concentric to the axis of thc socket tube 15, but. 'will beeccenF tric to the shank of the light bulb, butl nevertheless, always inmore or less contact with the annular contact ring 7. The arrange mentillust rated in Fig. 1 is believed to be tbc most practical of thev two.constructions illustrated, but. either form will be found perfectlyoperative and practicable.

Obviousljlv, undci' rotary adjustments oi the bulb holding collar 13,the threaded en gagement between the same and the sockel' tube. 15 willimpart adjustments to the light bulb, longitudinally to the axis of thereflector and will also adjust the light bulb transversely of the axisof tlierefie'ctor, or in a plane that transversely intersects the` axisof said reflector andof the lamp. lVhen the shank of the bulb is pressedrearward against the tension of the spring contact 9c plunger 18, thecollar 13 may be adjusted without rotating the lamp, and by thesecompound adjustments, the filaments of the light ullb will always beproperly set in respect to the reflector. 5

It will be noted that the shank of the electric lightbulb, atits end, isformed withv a. conical boss that projects through and be yond theannular intermediate contact 7 and that the axial contact S is appliedon the ex? tended or truncated end' of this boss` T-lfi'iiiVconstruction is important for the. following. reasons: Then the bulb isremoved from th" holding collar, the. outer end of the cont spring 19.or of the contact springs' 25 and? 26, as the case may be. will projectout into. the collar 125 .unich 'farther than shown in the d rawings andwill project through and liro|rx y the insulating centering ring. Thenth` bulb is inserted into the-holding collar, tlconical boss will comeinto engagement with the free outer end of said contact sprixgf-l andwill immediately centerv the same 1n spcct to the shank of t-he'bnlbandbring-'the same into proper engagcmellit with the inter- '115 mediatecontact 7, and moreover, as the bulb is forced into 'interlockingengagement: with.

the olding collar, the said boss willfmainiV T`l tain such properenneigement. between-"Whe said spring and the said intermediatecorr-@filati cantaor A Y a back thereof, a bulb holding collarpli'ovigev iaving-t'irea e with an leccentric portioii D engageinentwith the interior ofsaidsocket ti"ibe,ii forwardly 'spring-pressedaxially lo- 6 cated contact",plungerv within saldi".socketl tube,a.[coiled`contwt spring-within sind" socket `and an insulated centeringring Qni-neii-bi/Stid 0911er und' engaging 'the front poi-,tionofsaid'coilcd contactspring` 10 i `3.\Iii a headlight, the combinationwith a reflector, of a Socket tube siipliort'ed atthe' back thereof, Vabulb holding collar 'provided with an eccentric portion' 'iaviiigthreaded en agement 'with the interiorosaid socket i5 tu ie, a forwardly.spring-.pressed-axiallylocatedv contact 4- plunger within said sockettube, a coiled,coiitactfspi'ing within said aging said contact; plunger,'one engaging.

said .coiled contact. spriiig. andthe other grounded through saidholding collar.

reflector, of alsochet tube rigidly secured to *the back thereof, and a'lainp holding collar 'provded with an eccentric portion having'screw-threaded engagcinei'itwvith the said fixed socket tube, saidsocket tube and holding collar constituting an Aadiustable bulbsupporting Socket and having three electrical .35 contacts, and amultfilaincnt electric light bulb having a shank dctachably engageablewith said holding collar and provided with three electrical contacts forengagement with the three electrical contacts of said socket. t0 5. Thecoiiibiiiation with a socket sleeve having un insulating block lin oneend, and having internal threads in itsotlier end, ct' a lainp holdingcollar having an ext-eriially threaded eccentric engaging the internal.threads of said sleeve, anV axihl springprcssed `contact plungerprojecting troni said insulating;` block, an insulating ring in serted4into said threaded eccentric, and a contact lspiii-ng tleated .at itsrear end againsttt said insulatingblock,aiid at, its forwardendiirojcittiiig E'hiiloillgli salid insulating riiipr tor engagement?.with one ofthe lanip shank contacts, thc` io'uter. end of said contactsprl-iig and the4 interior of `saiid insulated im ring'bci'iigoutii'ardly tapered so that .the

said spring cannot bc projected out of said collar,I v 1 (i. ln aheadlightgi the coinbiiiation with a reflector. of a 'socket tube'located at the .60 bach; thereof, allanip holdingr collar roti tivelyinouiited` in saidsocket tube and adapted yto'liold an electric lightbulb, a for,-

.wnrd springpi'cssed contact pl linger' within` said socket tube forengageincntfivith -an 4axial contact of the light bulb, a coiled contactspring within said socket tube, for en- "vu' nient withunothcrconta'ctof the light, ju b, u nd an insulated centering ring car ried by said'collai and engaging the front portiojnof said .coiled contact spring.

' l'7. Iii ah'eadlight, the conibinatioi'i'with a reflector of a sockettube located at the back theof, a liiinp holding `collar rotatively ,mcinted insaid socket tube andadapted to -iold an electric light bulb, aforward springt-pressed contact plunger Within said socltct'tubeforerigageine'nt" with an axial Contact' tlie light bulb, a coiledcontact spring within said socket tube,.i"or engage- 'fmentwitlianothercoiitact of the light bulb,

an insulated centering ring carriedwby said.

collar und engaging the front portion of j said coiled contact spring,vthe ,axis of said holding collar beingeccentriclto the axis .of

' said socket tube', and an electric light bulb 'rotlativcly adjustablewithin `saidfholding col ai'.

'8. The combination with a bulb socket forni of ra coiled spring, of anelectric li ht bulb provided on the end of its shank with 4. Ina'licadlight, the combination with a a projecting tapered boss andatzthe base of said boss with a contact, the said boss being engagcablewith the cild ot said' contact spring 'to position thc same inproper.engagement with said Contact.

t). The combination with a bulb socket having ,within the saine acontact in theof s aid boss with a contact, the said bossiA beingengagcablc with thccnd of said contact spring to position the saine inproper engagement with saidy contact, the said socket further having'aninternal insulation liolding said contact spring out of engagevnientwith the walls thereof.

10. The combination with a bulb socket 'havingr within the saine acontact-'in the `torni of a coiled spring, ofan electric light "bulbprovided on the end of its shank with a projecting tapered bossand atthe base of.

said boss ivitli a contact` the said boss bein Y efigavgealile with theond of said contae, spring to,V positionV the saine in pro )er 'gen'-gageinent zwitlrsaid contact, the said liiilb havingiivo other contacts,one at the extended portion of said tapered boss and thel other 'at theexterior of its shank,"the `said bulb further having two filaments andthree wires connecting said tivofilaments tothe.

Said three. contactsiof said bulb.

I1` The combination with a' bulb socket i.

having within the saine a contact in the form of a coiled spring, of anelectriclight bulb rovided on the end of its shank' with a, pro1ecting`tapered boss and at the baseof said boss with a contact, the said bossbeing 'engageable with the end of said contact iso` Lavamat apr' toposition the `-same in pro r en- Eagenfent wth'aaid contact, the eaglebulb aving two other contacts, one at the entended portion of said tared boss and the other at the exterior o its shank, -the said bulbfurther having two filaments .and

a lam lholding collar having an externally threa ed eccentric engagingthe internal threads of said sleeve, an axial spring pressed contactplunger projecting from said insulating block, an insulating ringinserted into said threaded eccentric and a Contact spring. seated atits rear end againstsaid insulating block, and at its forward endprojecting through said insulating ring for engagement with one of thelamp shank contacts.

In testiinonyvwhereof I aix my signature in presence of two witnesses.

- OVERTON WINH'V Witnesses:

Barmen G. William, HARRY D. Kwoonn.

